Report of Foreign Private Issuer (Form 6-K)

This report details the trading of securities by management and related persons, controlling shareholders, and the board of directors of Braskem S.A. during March 2026. It specifies the opening and closing balances of various share classes, including Common Shares and Class "A" Preferred Shares, as well as Other American depositary receipts. The filing indicates that no transactions involving securities and derivatives were executed by these groups during the reported period, with the exception of certain unspecified transactions related to "Group and Related Persons" and "Management" for "Common Share" and "Class A Preferred Share" securities. The report is signed by Felipe Montoro Jens, Chief Financial Officer, on April 10, 2026. It also includes a disclaimer regarding forward-looking statements, emphasizing that actual results may differ materially from expectations due to various risks and uncertainties, including the potential impact of the geological event in Alagoas and the COVID-19 pandemic.